Shannon went to the bookstore she bought a book for $7.99 a magazine for $4.25 and a bookmark for $1.99 she also received 15% off of her entire purchase she handed the cashier a $20 bill how much did she spend and how much change did she get back

Eileen purchased 3.4 pounds of apples at the total cost of $19.72. if she purchases 6.2 pounds of apples at this store, how much would it cost?

Need on this one asap im almost done with this subject

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.